The 2017 West Sussex County Council election took place as part of the 2017 local elections in the UK.^[1] All councillors were elected for single-member electoral divisions for a four-year term. The voting system used was first-past-the-post.

Quick Facts All 70 seats to West Sussex County Council 36 seats needed for a majority, First party ...

2017 West Sussex County Council election

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All 70 seats to West Sussex County Council 36 seats needed for a majority
First party Second party Third party   Party Conservative Liberal Democrats Labour Last election 46 8 6 Seats won 56 9 5 Seat change 10 1 1
Map showing the results of the 2017 West Sussex County Council elections.
Council control before election Conservative Council control after election Conservative

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Boundary changes to the electoral divisions took effect following a review by the Local Government Boundary Commission for England.^[2]

The result was Conservative councillors formed an increased, 20-seat, majority on the council at the loss of the ten UKIP seats. The second-largest party grouping of councillors remained Liberal Democrats, gaining one seat to have nine seats and the balance of the council was formed by five Labour Party councillors, having lost one seat, net.

West Sussex is composed of 7 districts: Adur District, Arun District, Chichester District, Crawley Borough, Horsham District, Mid Sussex District and Worthing Borough. The following results are grouped by district.